Double Extra Dense Flint Glass Prism, 1.25", R=1.71-1.74 Prong_3 sized for large-scale demonstrations of

sized for large-scale demonstrations of elastic potential energy and simple harmonic motion

exposing the longitudinal and transverse components of wave motion mechanically

this insulated wire keeps polarity color-coded across short branches in 4mm-socket student circuits

used to study Snell's law

sized to span single-cell up through stacked-battery voltages on a single classroom instrument

Double Extra Dense Flint Glass Prism, 1.25", R=1.71-1.74 Prong_3 sized for large-scale demonstrations ofDouble extra dense flint glass prism at 1. 25 inch sides with refractive index between 1. 71 and 1. 74, the heaviest leaded flint giving the strongest dispersion in the comparison kit.